Filter septum

Details Filter septum Filter septum

1993-11-02

1995-03-21

Dawson, Robert A.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210489, 210496, 210499, 2105001, 210506, 427241, 22826231, 29447, B01D 2900

Patent

active

053992652

ABSTRACT:
A filter septum is constructed with a stainless steel sheet microscreen element which has uniformly distributed apertures through which a liquid to be filtered is passed from an inlet side to an exit side of the element. The apertures are preferably tapered from a larger diameter at the inlet side to a smaller diameter at the exit side of the microscreen element. A supporting metal base plate having rows of uniformly distributed holes which are larger then the apertures is brazed to the microscreen element bonding the exit side of the microscreen element to the inlet side of the base plate. Preferably the inlet side of the microscreen element is Teflon.RTM. coated.

REFERENCES:
patent: 3679062 (1972-07-01), Burkhart
patent: 3780872 (1973-12-01), Pall
patent: 3984044 (1976-10-01), Breton et al.
patent: 4169059 (1979-09-01), Storms
patent: 4234430 (1980-11-01), Peer et al.
patent: 4829766 (1989-05-01), Hemkel
patent: 5200072 (1993-04-01), Fresbore et al.
patent: 5221469 (1993-06-01), Nehls
patent: 5243632 (1993-09-01), Badin et al.
Microscreen Filtration of Metalworking Fluids presented and published in Mar. 1993 by the Society of Manufacturing Engineers (MR93-138) Author: Barry L. Nehls and Gale V. Cross.

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